Jump to content

Welcome to RennTech.org Community, Guest

There are many great features available to you once you register at RennTech.org
You are free to view posts here, but you must log in to reply to existing posts, or to start your own new topic. Like most online communities, there are costs involved to maintain a site like this - so we encourage our members to donate. All donations go to the costs operating and maintaining this site. We prefer that guests take part in our community and we offer a lot in return to those willing to join our corner of the Porsche world. This site is 99 percent member supported (less than 1 percent comes from advertising) - so please consider an annual donation to keep this site running.

Here are some of the features available - once you register at RennTech.org

  • View Classified Ads
  • DIY Tutorials
  • Porsche TSB Listings (limited)
  • VIN Decoder
  • Special Offers
  • OBD II P-Codes
  • Paint Codes
  • Registry
  • Videos System
  • View Reviews
  • and get rid of this welcome message

It takes just a few minutes to register, and it's FREE

Contributing Members also get these additional benefits:
(you become a Contributing Member by donating money to the operation of this site)

  • No ads - advertisements are removed
  • Access the Contributors Only Forum
  • Contributing Members Only Downloads
  • Send attachments with PMs
  • All image/file storage limits are substantially increased for all Contributing Members
  • Option Codes Lookup
  • VIN Option Lookups (limited)

Recommended Posts

A little while back I noticed some small amt of oil under the valve cover gasket area (under the cover and below gasket area). Also saw some oil spot near the valve cover gasket (when looking from front of car into Engine compartment, where the gasket is facing front of car).

So looks like the valve cover aging.

I am interested in replacing and want to know if anyone has one this, how hard is it to replace valve cover gaskets, etc.

Thanks for any help you can give.

Share this post


Link to post
Share on other sites

It's a pain. I'm doing this right now. On the turbo (and I'd imagine on the S) I've pulled the air injection pumps and brackets and also removing the airbox cover, such as replacing the filter, have helped and quite frankly I'm stunned that isn't in the Porsche service manual. My symptoms were smoke from burning oil coming up from the passenger side. I've had to run the heater on recirc to keep from sniffing fumes from the burnt oil. Anyway, the gasket I removed broke and is very stiff. I have to give credit to the person who designed it. The rubber getting old and brittle is about the only way for this gasket to fail. Oh and I had to cut down a t-40 bit to fit a bit driver (1/4") with a universal joint and extension to reach and be able to loosen/tighten the lower back corner bolt off of the cover. The service manual warns about this. I'll post pics of that "tool" when I finish up.

Share this post


Link to post
Share on other sites

Pics as promised to get the rear, lower corner bolts off the covers. I also had to use it on the left (driver's) second-to-the-rearmost bolt as well. In the process of doing the valve covers I broke both sides of the crankcase vent tube(s). You can cut off the hard pieces with a razor and use 3/4" heater hose to re-plumb it. The fitings are already barbed to accept the hose. Some hints along the way: if it looks like something will be in the way, it will be so just remove it so you don't fight it later. Remove the lower engine cover just like you would if replacing the oil filter. That way if (when) you drop something you can get to it quickly. It's also necessary to remove the AC harness plug on the left side. I couldn't get it off without unplugging it. The trick with it is the tabs that hold it together are facing into the freon fitting. You need to slide the connector off the mounting boss (grooved) to get to the tab. Once you get it off, rotate it 180 degrees as shown in the pic so the tab will be on the "visible" side and be easier to get to. I did have to route the wiring differently putting it all back together but with a couple of zip ties it fit just fine.

Of interest after taking the covers off, it appears that Porsche put the silicone RTV on the valve cover side of the gasket where the front cover and head meet. In the manual you put the RTV on that seam to make sure it seals and there was nothing there when I pulled them off. Weird. I did this over two separate weekend days. It takes a lot of time just to remove and bolt things back on.post-35813-0-01506000-1390309168_thumb.jpost-35813-0-61563400-1390309191_thumb.jpost-35813-0-84994300-1390309208_thumb.jpost-35813-0-19162700-1390309231_thumb.j

  • Upvote 1

Share this post


Link to post
Share on other sites

Just to clarify, the heater hose in the pic above is for the Moroso catch can I have installed. You can see the broken end of the PCV tube laying next to the intake manifold at the top of the pic - that's what i replaced with heater hose.

Share this post


Link to post
Share on other sites

Wish I'd seen this a few weeks ago... great writeup.  The a/c harness plug had me so baffled the first time I buttoned it all back up until I could lift it and figure out where that line ended up.  That was harder than removing the valve cover!

 

Any issues replacing the PCV tubing with heater hose?  I'm very tempted to do this with may of those old brittle vent lines... they break every time and cost ~$100 each. 

Share this post


Link to post
Share on other sites

cosmoracing they made the silicone breather hoses for Cayenne-S and turbo in replacing the brittle PVC vent hoses!

Share this post


Link to post
Share on other sites

yup. seems like every 2 years I'm replacing mine. last time was December 2014, left bank was leaking so replaced both.. Guess what? gotta leak again this time from right bank. 

Share this post


Link to post
Share on other sites
On 1/21/2014 at 6:03 AM, the head said:

Pics as promised to get the rear, lower corner bolts off the covers. I also had to use it on the left (driver's) second-to-the-rearmost bolt as well. In the process of doing the valve covers I broke both sides of the crankcase vent tube(s). You can cut off the hard pieces with a razor and use 3/4" heater hose to re-plumb it. The fitings are already barbed to accept the hose. Some hints along the way: if it looks like something will be in the way, it will be so just remove it so you don't fight it later. Remove the lower engine cover just like you would if replacing the oil filter. That way if (when) you drop something you can get to it quickly. It's also necessary to remove the AC harness plug on the left side. I couldn't get it off without unplugging it. The trick with it is the tabs that hold it together are facing into the freon fitting. You need to slide the connector off the mounting boss (grooved) to get to the tab. Once you get it off, rotate it 180 degrees as shown in the pic so the tab will be on the "visible" side and be easier to get to. I did have to route the wiring differently putting it all back together but with a couple of zip ties it fit just fine.

Of interest after taking the covers off, it appears that Porsche put the silicone RTV on the valve cover side of the gasket where the front cover and head meet. In the manual you put the RTV on that seam to make sure it seals and there was nothing there when I pulled them off. Weird. I did this over two separate weekend days. It takes a lot of time just to remove and bolt things back on.tool1.jpgACplug.jpgtool2.jpgVCoff.jpg

I just started replacing my valve cover gaskets and have one done already.   

I know your post is from 2 years ago but I would like to thank you. The pictures you posted of the cut down torx bit and the A/C plug were instrumental in me keeping my sanity during this project. 

  • Like 1
  • Upvote 1

Share this post


Link to post
Share on other sites

Hi Guys,

Im in the middle of doing the valve cover gaskets.  I started with the passenger side.  When I took the cover off, there were these brass looking bolts with holes in the middle.  cyl. 1-3 had them cyl. 4 was odd duck and did not have it.  I looked on pelican and the picture of the valvetrain looked the same with the odd duck brass fitting.  It doesnt look right.  cyl 4 had a misfire.  Im just wondering if any of you might have an hd picture of the passenger side, or even know what im talking about.  The picture above shows the drivers side and all the brass fittings are missing.  It looks like those, but only one.  the rest have brass fittings.

  Please help.  I have to have my car.

brass.png

Edited by coolbronco
I saw the hd picture above but it was drivers side and missing brass

Share this post


Link to post
Share on other sites

I'm about to order new valve cover gaskets for my 04 CTT. Are there any other gaskets I should replace while doing this repair? Thank you!

Share this post


Link to post
Share on other sites

I believe the valve cover gasket kit will come with 2 valve cover gaskets, 2 spark plug gasket sets (one set for 4 plugs, total two gaskets for 8 plugs), plus two seals for camshaft adjuster caps.  Will cost about 100 bucks total for oem.

Share this post


Link to post
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.


×
×
  • Create New...

Important Information

We have placed cookies on your device to help make this website better. You can adjust your cookie settings, otherwise we'll assume you're okay to continue.